Ireton-Jones energy equations (1992)
Energy expenditure for hospitalized patients, ventilated or spontaneously breathing.
Inputs
1 of 4SexUsed by the equation
years
Actual (total) body weight
Breathing
Trauma
Burn
Obese
Patient values are shared with every calculator.
When to use
- Hospitalized adults when calorimetry is unavailable.
Pearls and pitfalls
- Uses actual body weight.
- Obesity is defined as more than 30% above IBW or BMI above 27 in the original work.
Why use
Includes trauma and burn terms that simple equations lack.
Ventilated: 1784 − 11 A + 5 W + 244 (male) + 239 (trauma) + 804 (burn). Spontaneous: 629 − 11 A + 25 W − 609 (obese)